iOS 12.4.7 (build 16G192) is an official Apple over-the-air update for the iPhone 6, released on 2020-05-20T17:08:48Z. The update package is 725.65 MB. This is a delta (partial) update that requires 12.1.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 7ccc7416feb17bc68b6651760946463c0af5713e.zip.